*{
    margin:0;
    padding:0;
}
li{
    list-style: none;
}
.banner{
    height:600px;
}
.banner1{
    background:url("../img/banner.jpg");
}
.banner2{
    background: url("../img/banner2.jpg");

}
.banner3{
    background:url("../img/banner3.jpg");
}
.card-text{
    height: 30px;
    overflow: hidden;
    white-space:nowrap;
    text-overflow: ellipsis;
}
.main{
    background: url("../img/banner4.jpg");
}
.footer{
    background:silver;
}
h3{
    padding:10px 0 0 10px;
}
.p1,.list{
    padding-left:10px;
}
.list{
    margin-top:20px;
    font-size:14px;
}
.nav{
    color:#007bff;
    cursor: pointer;
}
@media (max-width:600px){
    .banner{
        height:230px;
    }
    .banner1{
        background:url("../img/banner.jpg") center center no-repeat;
        background-size:cover;
    }
    .banner2{
        background: url("../img/banner2.jpg") center center no-repeat;
        background-size:cover;

    }
    .banner3{
        background:url("../img/banner3.jpg") center center no-repeat;
        background-size:cover;
    }
}

